Continuous baking-oven.



Patented 0ot.12,19o9.

4 BEEETS--SHEET l.

S. JAGOBSON.

CONTINUOUS BAKING OVEN.

APPLICATION FILED 51111.27, 1-905.

INEE

S. IAOBSGM CONTINUOUS BKING OVEN.

AHLIGATIOH Hmm JAN. 27, 1905.

Patened Get. l2, 1909.

4 SHEETS-SHEET 2l S. JAOOBSON.

CONTINUOUS BAKING OVEN.

APPLIGATIN FILED JAN. 27, 1905.

937,000, Patented Oct. 12, 1909.

4 SHEETS-SHEET 3.

S. JAOOBSON.

CONTINUOUS BAKING OVEN.

APPLICATION FILED JAN. 27, 1905.

937,0()0'e Patented Oct. 12, 1909.

4 SHEETS-SHEET 4.

l l u l u l l l u SYDNEY JACCBSON, OF CHICLGC)7 ILLINOIS.

CONTINUOUS BAKING-OVEN.

Specification of LettersvPatent.

Patented Cet., 12, 1909.

Application filed January 27, 1905. Serial No. 242,946.

To all ivf/tomy 'it muy concern:

Be it known that I, Simms-Y Jacoesorv, a

citizen of the United States, residing at Chicago, county of Cook, andState of Illinois, have invented a new and useful Continuous EakingOven,of which the following is a specification.

My invention relates lto ovens through which the material to be baked iscontinually moving, and the objects of my improvements are, first, toprovide heating flues below and above the baking chamber and means forforming communication between the baking chamber and a lire place;second, to arrange the fines so that the heat in the different parts ofthe baking chamber can be regulated; third, to have the material carriertravel in and out of the baking chamber in a horizontal plane; fourth,to secure the pans, upon which the material to be baked is placed, to anendless chain in such manner as to facilitate their travel through thebaking chainber, and other objects to become apparent from thedescription to follow.

Different classes of bakery goods require to be baked different lengthsof time, and to accomplish this properly the heat in the baking chambermust be regulated quite accurately. s

T iis invention provides for the regulation of heat in all parts of thebaking chamber and insures proper baking.

i have illustrated my invention on the accompanying four sheets ofdrawings forming a part of this specification, in which Figurc 1 is aside elevation foreshortened of an oven embodying my invention; Fig. 2.is a longitudinal section through the same; Fig. 3, is a cross sectionon 3 3 of Fig. 1; Fig. et, is a cross section on i-il of Fig. 1; Fig. 5,is a plan section on of Fig. Q; Fig. 6, is a plan section on GWG of Fig.2; Fig. T, is a plan section on 7 7 of Fig. 2; Fig. 7a, is an enlargedperspective view showing the manner ot attaching the pans to the chain;Fig. 8 is a side elevation foreshortened showing a modified form of myinvention; Fig. 9, is a vertical longitudinal section through the same;Fig. 1G, is a cross section on 10 10 of Fig. Fig. 11, is a cross sectionon 11-11 of Fig. 9, Fig. 12, is a plan section on 12u12 of Fig. 8; Fig.13, is a plan section on 13 13 of Fig. S; and Fig. 14, is a plan sectionon 14-14 of Fig. 8.

Similar reference characters refer to similar parts throughout theseveral views.

The complete structure is built of brick or any suitable materialpreferably faced with tile or lire brick wherever exposed to eX* tremeheat.

I will first describe the preferred construction illustrated in Figs. 1to 7. rEhe baking chamber 15 is in the form of two iiues open to theexterior at the front side of the structure and connected by the shortflue 1G in the rear end of the structure. T he tlues 15 are separated bythe center wall 17. The structure in so far as the heat lines below andabove the baking chamber 15 are concerned may be considered as front andrear halves which are arranged alike. Below the baking chamber 15 closeto either end of the structure is a lire place 1S provided with theordinary grate 19. Extending from the lire places 1S toward the centerof the structure and immediately below the baking chamber 15 are thefour tlues 2O which communicate with the tlues Q1 near the center of thestructure; the fines 21 extend upward in the walls beside the bakingchamber 15 and communicate with the tlucs 22' which are locatedimmediately above the baking chamber 15. The tlues 22 extend from apoint near the center of the structure toward either end near which theycommunicate, by means of the tlues 23, with the chimney l'iue 2e. rlhedampers 25 are provided in the four flues Q3 for regulating the iow ofhot gases therethrough. The hot gases formed by combustion of fuel inthe lire places 1S will pass through the tiues and heat the bottom ofthe baking chamber 15, thence they will pass upward through the ues 21into and through the iiues 22 and heat the top of the baking chamber 15,after which they will pass out through the tlues 23.

To assist in heating the baking chamber 15 and to be able to conductsome hot fumes or gases directly, into the baking chamber 15, a centraltire place 2G is provided below the baking chamber 15. One flue 27 leadsfrom the lire place 2G forward to a vertical hue 2S which communicateswith the chim ney flue 2st; and one tine 29 formed in the wall 17 leadsfrom the tire place 2G toward the rear into the baking chamber 15. Theflue QS is provided with a damper BO, and the. flue QS) is provided witha damper 31. Yilhen the damper SO is open and the damper 31 is closedthe gases from the Vtire place 2G will l;

pass out through the chimney flue 24, and when the damper 31 is open andthe damper 30 is closed the gases from the Hre place 26 will pass int-othe baking chamber 15. To permit any surplus gases or heat to escapefrom the baking chamber, the Hue 32 is provided in one of the wallsforming communication between the oven 15 and one of the Hues 22; andsaid Hue 32 is provided with a damper 33.

The material to be baked is fed into one of the baking chamber Hues 15and out of the other by an endless chain carrier, which consists of theendless chain 34 passing over the sprocket wheels 35 and 36, and havingthe plurality of pans 37 attached to the chain 34 to travel therewith.The wheel 35 is located centrally in the rear end of the baking chamberabout equidistant from the three outer walls and is secured to thevertical shaft 3S journaled at the top and bottom ends and having a gear39 secured thereto which is preferably driven by a worm 40. The wheel 36is located some distance in front of the structure centrally of the twobaking chamber Hues 15 and is secured to the vertical shaft 41 which isjournaled at its upper and lower ends in the adjustable bearing blocks42. The chain 34 travels in a horizontal plane and the pans 37 arepreferably detachably secured to the chain 34 to travel in a horizontalplane. One edge of each pan is supported by the chain 34 and theremaining edge is supported by and slides upon an endless rail 43arranged in a loop extending in the Hues 15 and-16 and encircling thewheels 35 and 36. The pans 37 may be made of sheet metal eitherperforated or not or of wire and secured to the chain in any desirablemanner. I have shown them secured to the chain in Fig. 6, by two pins 44provided on each pan which extend down into perforations providedtherefor in the strap 45 which is rigidly secured to a link of the chain34. To assist in supporting the pans 37 a plurality of metal straps areprovided under each pan secured to the links of the chain 34, and theends of some of the straps remote from the chain extend beyond the rail43 so as to slide on said rail when the chain is in motion. Since thestrain caused by the chain while pulling the pans around the circuitthrough the baking chamber is on the forward strap 45 and the chain isHexible the pans tend to twist so as to bring their edges out ofalinement with the line of travel and thus contact with the walls of theoven. To retain the pans in perfect alinement and avoid any possibledamage a stop 46 is provided above the chain 34 near the rear edge ofeach pan, which may be formed by bending up the end of one of thesupporting straps.

In operation lires are constantly kept up in the fire places 18 and 26,the dampers are regulated as desired and power is applied to rotate theworm 40 thus causing the chain same and all material resting on the panswill be pushed from the same as the pans travel under the ejector.

In Figs. 3, to 14, is shown a modified construction of my invention,which has the baking chamber Hues l5 and 16, chain 34, wheels 35 and 36and their connections, pans 37, ejector 49 and rail 43 all arranged asdescribed in connection with Figs. 1 to 7. The pans 37 are secured tothe chain 34 by two pins 50 extending up from the chain and throughperforations provided therefor in the pan. The pins 50 extending througheach pan, are placed such a distance apart that they will serve toretain each pan in its proper position relative to the line of travel.One of the perforations in each pan 37 is elongated so that the pin 50can freely move therein to compensate for the travel of the pans overthe wheels 35 and 36. The fire places 51, 52 and 53 are provided to heatthe baking chamber. The lire place 51 is located in the front end of thestructure and communicates with the Hue 54 above the baking chamber Hues15 by means of the vertical Hue 55 provided in the side wall of thestructure. The Hre place 52 is adjacent the fire place 51 in the frontend of the structure, and communicates with the Hues 56 arranged belowthe baking chamber 15. The end of the Hue 54 remote from theHue 55communicates with the chimney Hue 57 by means of the short vertical Hue5S which is provided with the damper 59. The ends of the Hues 56 remotefrom the fire place 52 communicate with the chimney Hue 60 by means ofthe vertical Hues 61 in either side walls of the structure which areprovided with the dampers 62. Two Hues lead from the fire place the one63 leading to the interior of the baking chamber 15 and the other 64leading to the chimney Hue 57. The damper 65 is provided in the lHue 63,and theA damper 66 is provided in the Hue 64. The chain 34 is caused totravel through the baking chamber 15 in the direction indicated in Fig.13, by passing over the sprocket wheels 35 and 36 and has attachedthereto t-he pans 37. The sprockets 35 and 36 have the same connectionsas previously described in connection with the construction shown inFigs. 1 to 7. The pans 37 however are secured to fl O the chain 3% bybeing provided with two perforations through which the pins extend aspreviously referred to.

49 I may prefer to place a stationary brush or it may be a revolvingbrnsh conveniently driven by the shaft ell. 1n place ot the ejectorshown and described there may be some means provided tor tilting thepans up on one side after leaving the baking chamber and thus dumpingthe baked material cti' of the same.

1 desire to be understood as limiting myseit to the exact interpretationot the appended claims only so far as is necessary when considering theprior state ot' the art to which this invention pertains.

Having thus fully described my invention what l claim as new and desireto secure by Letters Patent ot the TUnited States is l. in an oven, abaking chamber having a central dividing wall extending from one end towithin a short distance of the other end and an endless goods carriertraveling through said U shaped chamber.

'2. ln an oven, a long horizontal baking chamber provided with avertical central dividing wall, heating tlues above and below saidbaking chamber to heat the same and a heating tine in said central wallto heat said baking chamber and communicating with said baking chamber.

f5. ln an oven, a long horizontal baking chamber provided with avertical central dividing wall, a series of independently heated tiuesbelow and above the front end of said chamber and a series of independently heated fines below and above the rear end ot said chamber.

el. ln an oven, a long horizontal, baking chamber provided with avertical central dividing wall7 a series ot independently hea-ted finesbelow and above the trent end of said chamberv` a series ofindependently heated tlues below and above the rear end of said chamberand an independently heated line in said central division wall.

ln an oven, a long baking chamber, a series et independently heatedfines below and above the front end of said chamber, a series otindependently heated lines below and above the rear end of said chamber,a central division vall in said chamber and an independently heated tinein said division wall, means for forming coinnninication hetween saidlast named tine and said baking chamber and means for formingcommunication between said baking chamber and the exterior atmosphere.

6. ln an oven, a long baking' chamber provided with a central wall,heating lines above and below said baking chamber to heat the same and aheating flue in said central wall to heat said baking chamber, asprocket wheel mounted to rotate in a horizontal plane within saidbaking chamber, a second sprocket wheel mounted to rotate in a horlfzontal plane on the exterior of said baking 1n place ot the stationaryejecting board chamber, an endless chain connecting said two sprocketwheels and means whereby said second named sprocket wheel is driven bysaid first named sprocket wheel.

7. 1n an oven, a long baking chamber provided with a central wall,heating iues above and below said baking chamber to heat the same and aheating tlue in said central wall to heat said baking chamber, asprocket wheel within said chamber rigidly mounted on n vertical shafthaving one end extending to the exterior' of said baking chamber, asecond sprocket wheel on the exterior of said baking chamber, an endlesschain connecting said two sprocket wheels and means connected to theexposed end ot said vertical shaft to rotate the same.

8. 1n an oven, a long baking chamber provided with a central wall,heating fines above and below said baking chamber to heat the saine anda heating liuc in said central wall to heat said baking chamber, avertical shaft within said baking chamber, a vertical shaft on theexterior of said baking chamber, a sprocket wheel mounted on said firstnamed shaft, a sprocket wheel mounted on said second named shaft, anendless chain connecting said two sprocket wheels, means whereby saidsecond named shaft is rotated by said tirst named shaft and means foradjusting said second named shaft laterally toward and away from saidfirst named shaft.

9. In an oven, a long baking chamber provided with a central wall,heating tiues above and below said baking chamber to heat the same and aheating fine in said central wall to heat said baking chamber, asprocket wheel mounted to rotate in a horizontal plane within saidchamber, a sprocket wheel mounted to rotate in a horizontal plane on theexterior et said chamber, an endless chain connecting said two sprocketwheels and means tor constantly rotating said two sprocket wheels.

10. 1n an oven, a long baking chamber provided with a central wall,heating tlues above and below said baking chamber to heat the saine anda heating tine in said central wall to heat said baking chamber, asprocket wheel mounted to rotate in a horizontal plane within saidchamber, a sprocket wheel mounted to rotate in a horizontal plane on theexterior of said baking chamber, an endless chain connecting said twosprocket wheels, means whereby said second named sprocket wheel isdriven by said lirst named sprocket wheel and means tor moving saidsecond named sprocket wheel toward and away from said first namedsprocket wheel.

11. In an oven, a long horizontal baking chamber provided with avert-ical central dividing wall, heating fines above and below saidbaking chamber to heat the same, a heating fiue, in said central wallcommunicating with said baking chamber, and an endless goods carriercontinuously traveling through said baking chamber.

12. In an oven, a long baking chamber, a series of independently heatedflues below and above the front end of said chamber and a series ofindependently heated fines below and above the rear end of said chamber,a sprocket wheel mounted to rotate in a horizontal plane within saidbaking chamber, a second sprocket wheel mounted to rotate in ahorizontal plane on the exterior of said baking chamber, an endlesschain connecting said two sprocket wheels and means whereby said secondnamed sprocket wheel is driven by said first named sprocket wheel.

18. In an oven, a long baking chamber, a series of independently heatedflues below and above the front end of said chamber and a series ofindependently heated flues below and above the rear end of said chamber,a sprocket wheel within said chamber rigidly mounted on a vertical shafthaving one end extending to the exterior of said baking chamber, asecond sprocket wheel on the exterior of said baking chamber, an endlesschain connecting said two sprocket wheels and means connected to theexposed end of said vertical shaft to rotate the same.

14e. In an oven, a long baking chamber, a series of independently heatedflues below and above the front end of said chamber and a series ofindependently heated flues below and above the rear end of said chamber,a vertical shaft within said baking chamber, a vertical shaft on theexterior of said baking chamber, a sprocket wheel mounted on said firstnamed shaft, a sprocket wheel mounted on said second named shaft, anendless chain connecting said two sprocket wheels, means whereby saidsecond named shaft is rotated by said first named shaft and means foradjusting said second named shaft laterally toward and away from saidfirst named shaft.

15. In an oven, a long baking chamber, a series of independently heatedfines below and above the front end of said chamber and a series ofindependently heated fines below and above the rear end of said chamber,a sprocket wheel mounted to rotate in a horizontal plane within saidchamber, a sprocket wheel mounted to rotate in a horizontal plane on theexterior of said chamber, an endless chain connecting said two sprocketwheels and means for constantly rotating said two sprocket wheels.

15. In an oven, a long baking chamber, a series of independently heatedfiues below and above the front end of said chamber and a series ofindependently heated 'fines below and above the rear end of saidchamber, a

sprocket wheel mounted to rotate in a horizontal plane within saidchamber, a sprocket wheel mounted to rotate in a horizontal plane on theexterior of said baking chamber, an endless chain connecting said twosprocket wheels, means whereby said second named sprocketwheel is drivenby said first named sprocket wheel and means for moving said secondnamed sprocket wheel toward and away from said first named sprocketwheel.

17. In an oven, a long baking chamber, a series-of independently heatedflues below and above the front end of said chamber, a series ofindependently heated fines below and above the rear end of said chamber,a central division wall in said chamber and an independently heated fluein said division wall, a sprocket wheel mounted to rotate in ahorizontal plane within said baking chamber, a second sprocket wheelmounted to rotate in a horizontal plane on the exterior of said bakingchamber, an endless chain connecting said two sprocket wheels and meanswhereby said second named sprocket wheel is driven by said first namedsprocket wheel.

1S. In an oven, a long baking chamber, a series of independently heatedfines below and above the front end of said chamber, a series ofindependently heated fines below and above the rear end of said chamber,a central division wall in said chamber and an independently heated fluein said division wall, a sprocket wheel within said chamber rigidlymounted on a vertical shaft having one end extending to the exterior ofsaid baking chamber, a second sprocket wheel on the exterior of saidbaking chamber, an endless chain connecting said two sprocket wheels andmeans connected to the exposed end of said vert-ical shaft to rotate thesame.

19. In an oven, a long baking chamber, a series of independently heatedfines below and above the front end of said chamber, a series ofindependently heated fines below and above the rear end of said chamber,a central division wall in said chamber and an independently heated fluein said division wall, a vertical shaft within said baking chamber, avertical shaft on the exterior of said baking chamber, a sprocket wheelmounted on said rst named shaft, a sprocket wheel mounted on said secondnamed shaft, an endless chain connecting said two sprocket wheels, meanswhereby said second named shaft is rotated by said first named shaftandmeans for adjusting said second named shaft laterally toward and awayfrom said first named shaft.

20. In an oven, a long baking chamber, a series of independently heatedflues below and above the front end of said chamber, a series ofindependently heated flues below and above the rear end of said chamber,a central division wall in said chamber and an independently heated tluein said division wall` a sprocket wheel mounted to rotate in ahorizontal plane within said chamber, a sprocket wheel mounted to rotatein a horizontal plane on the exterior ot said chamber, an endless chainconnecting said two sprocket wheels and means tor constantly rotatingsaid two sprocket wheels.

2l. In an oven, a long` baking chamber, a series ot' independentlyheated tlues below and above the front end ot said chamber, a serieso'i' independently heated tlues below and above the rear end of saidchamber, a central division wall in said chamber and an independentlyheated tine in said division wall, a sprocket wheel mounted to rotate ina horizontal plane within said chamber, a sprocket wheel mounted torotate in a horizontal plane on the exterior of said baking chamber, anendless chain connecting said two sprocket wheels,` means whereby saidsecond named sprocket wheel is driven by said named sprocket wheel andmeans for moving said second named sprocket wheel toward and away fromsaid first named sprocket wheel.

in an oven, a long` horizontal bakingl chamber, a series otindependently heated iiues l elow and above the tront end ot saideliainber, a series ot ineciendently heated tlues below and above therear end ot said chamber7 a vertical central division wall in saidchamber provided with an independently heated flue communi atingwithsaid chamber and an endless goods carrier continuously traveling throughsaid baking chamber.

23. ln an oven, a long bakingl chamber, a series ot independently heatedlines below and above the t'ront end ot said chamber, a series otlindependently heated lues below and above the rear end ot' said chamber,a central division wall in said chamber and an independently heated tluein said division wall, means for forming communication between said lastnamed tlue and said baking chamber and means for forming` communicationbetween said baking chamber and the exterior atmosphere, a sprocketwheel mounted to rotate in a horizontal plane within said bakingchamber, a second sprocket wheel mounted to rotate in a horizontal planeon the exterior ot said baking` chamber, an endless chain connectingsaid two sprocket wheels and means whereby said second named sprocketwheel is driven by said first named sprocket wheel.

2l. ln an. oven, a long baking chamber, a series of independently heatedtlues below and above the front end of said chamber, a .series ofindependently heated lines below and above the rear end ot said chamber,a central division wall in said chamber and an independently heated fluein said division wall, means tor forming communication between said lastnamed line and said baking` cnamber and means for forming` communicationbetween said baking chamber and the exterior atmosphere, a sprocketwheel within said chamber rigidly mounted on a vertical shaft having oneend extending to the exterior of said baking chamber, a second sprocketwheel on the exterior ot said baking` chamber7 an endless chainconnecting` said two sprocket wheels and means connected to the exposedend of said vertical shaft to rotate the saine.

ln an oven, a long bakingchamber, a series ot independently heated fluesbelow and above the front end of said chamber, a series of independentlyheated tlues below and above the rear end oit said chamber, a centraldivision wall in said chamber and an independently heated flue in saiddivision wall, means for forming, communication between said last namedAtlue and said baking chamber and means for forming communicationbetween said baking chamber and the exterior atmosphere, a verticalshaft within said baking` chamber, a vertical shaft on the exterior olsaid baking chamber, a sprocket wheel mounted on said lirst named shaft,a sprocket wheel. mounted on said second named shaft, an endless chainconnecting y said two sprocket wheels, means whereby said second namedshaft is rotated by said rst named shaft and means tor adjusting saidsecond named shat't laterally toward and away from said first namedshaft.

9G. In an oven, a long' baking chamber, a series ot independently heatedlues below and above the front end of said chamber, a series ot'independently heated tlues below and above the rear end otx saidchamber, a central division wall in said chamber and an independentlyheated tlue in said division wall, means for Yforming' communicationbetween said last named flue and said baking` chamber and means forforming communication between said baking' chamber and the exterioratmosphere, a sprocket wheel mounted to rotate in a horizontal planewithin said chamber, a sprocket wheel mounted to rotate in a horizontalplane on the exterior of said chamber, an endless chain connecting saidtwo sprocket wheels and means :tor constantly rotating' said twosprocket wheels.

2T. In an oven, a long,` baking' chamber, a series of independentlyheated lines-below and above the front end ot said chamber, a series otindependently heated ilues below and above the rear end of said chamber,a central division wall in said chamber and an independently heated tinein said division wall, means for forming` communication between saidlast named l'lue and said. baking,- chamber and means for formingcommunication between said baking chamber and the exterior atmosphere, asprocket wheel mounted to rotate in a horizontal plane within saidchamber,- a sprocket wheel mounted to rotate in a horizontal plane onthe exterior of said baking chamber, an endless Chain Connecting saidtwo sprocket wheels, means whereby said second named sprocket wheel isdri-ven by said first named sprocket wheel and means for moving saidsecond named sprocket wheel toward and away from said rst named sprocketwheel.

28. In an oven, a long baking chamber, a series of independently heatedflues below and above the front end of said chamber, a series ofindependently heated ues below and above the rear end of said Chamber, acentral division in said Chamber and an independently heated flue insaid division wall, means for forming Communication between said lastnamed fine and said baking Chainber and means for forming communicationbetween said baking chamber and the exterior atmosphere, and an endlessgoods carrier arranged to continuously travel in a loop lying in ahorizontal plane within said baking chamber.

29. In an oven a long baking chamber, a series of independently heatedfines below' and above the front end of said chamber, a series `RL J.JACKER,

FRED. J. SCHOD, Jr.

